APPLICATION: HONDA CRF 450 R 11-12
PROFILE CHARACTERISTICS:
HIGH PERFORMANCE
PROFILE designed for TT and MOTOCROSS applications.
This profile provides
great increase throttle response and mid end: high lift combined with a middle
duration increases torque and maintain good increases in top end as well.
Requires Exhaust
System, High Compression Piston, and Performance Valve Spring Kit. Check ALL
clearances!
Larger diameter lifters
are required.
Web Cams item code: 59-002
Profile: 493
/ 1081
INTAKE EXHAUST
Valve Lash (Inch): .006" .009"-
.0011”
Valve Lift (Inch): 0.415 0.317
Valve Lift (mm): 10.54 8.05
Advertised Duration: 276° 281°
Duration @ 0.050": 252° 243°
Lobe Center: 110° 104° Overall 107°
OPENING: 16° before
TDC 45.5° before TDC
CLOSING: 56° after
TDC 17.5° after TDC